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Report Produced: 09/22/2025 08:41 AM

Report Question ID Question Discussion Answer Year
20100113 Reportability--Heme & Lymphoid Neoplasms: Is hemophagocytic lymphohistiocytosis reportable?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

No. This is not a reportable hematologic condition. When you do not find a hematologic or lymphoid condition listed in the Heme DB, it is not reportable. Hemophagocytic lymphohistiocytosis is an uncommon hematologic disorder. The patient usually presents with fever, splenomegaly, and jaundice. Laboratory findings are lymphocytosis and histiocytosis. Pathology findings are hemophagocytosis.

Appendix F lists this term as non-reportable.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100068 Histology--Heme & Lymphoid Neoplasms: How is this field coded for a JAK-2 positive myeloproliferative disorder, NOS, that is never specified as acute or chronic but was treated with Hydrea? See Discussion. The hematology oncologist referred to the case as a JAK-2 positive myeloproliferative disorder. It is never called acute or chronic. JAK-2 test was positive for mutation, and the bone marrow report indicates, "Morphological features can be seen in myeloproliferative neoplasm." Flow cytometry report indicates, "The flow data demonstrate neutrophilia with left shift. Lymphocytes are composed of a mixed population of T and B-cells with some atypical B-cells." The patient is subsequently treated with Hydrea.

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the histology to 9975/3 [myeloproliferative/myelodysplastic neoplasm, unclassifiable] which is a new code implemented in 2010. Myeloproliferative disorder NOS is equivalent to myeloproliferative disease which is listed as a synonym for code 9975/3.

When the disease is diagnosed very early, it may manifest symptoms of two or more specific myeloproliferative neoplasms. As the disease progresses, it will manifest the symptoms of one of the specific MPN subtypes. When a more specific diagnosis becomes available, change the histology code to the more specific MPN code as directed in the PH rules. That is the scenario you describe. JAK-2 is positive, but the physician does not designate PV or ET. Hydrea is treatment for both PV and ET. In the future, the specific type of MPN may be diagnosed. In the interim, code the only diagnosis you have, MPN, NOS.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100082 Ambiguous terminology/Reportability--Heme & Lymphoid Neoplasms: Should a case be accessioned as MDS, NOS when a consult uses ambiguous terminology (e.g., probable MDS) to describe the disease process and the bone marrow does not confirm the consult diagnosis? See Discussion. A patient is stated to have "probable MDS" by a hematology oncologist consult during an admission. A bone marrow biopsy was also performed during this admission, the final diagnosis on the pathology report is, "anemia and thrombocytopenia." The patient was not seen again by a hematology oncologist; however the patient's cardiology states, "BM biopsy was not clear whether this is MDS or another etiology."

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

This is not reportable. In effect, the original diagnosis was a rule/out MDS diagnosis. The bone marrow biopsy performed as part of the initial workup, proved that rule/out diagnosis was not valid. The subsequent statement confirms the diagnosis is not clear.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100037

Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries should be accessioned for a patient diagnosed with essential thrombocythemia [9962/3] in 2002 who had a 2010 biopsy consistent with the fibrotic stage for a chronic myeloproliferative disorder that "suggests the patient is transforming to an acute myeloid leukemia"? See Discussion.

Patient had a diagnosis of essential thrombocythemia [9962/3] in 2002 and was treated with Hydroxyurea. In 2010, the patient was admitted with severe bone pain and a diagnosis described as, "The overall features of the biopsy are consistent with a fibrotic stage of a chronic myeloproliferative disorder. The presence of up to 15% CD34+ immature cells seen in the biopsy suggests that the patient is transforming to an acute myeloid leukemia." In addition, cytogenetic studies and molecular testing for JAK2 were ordered. These findings confirmed a myeloproliferative disorder. JAK2 mutation was not detected. The patient died within 2 weeks. Is this a new primary?

Was this patient diagnosed with AML (which requires 20% or more blasts and this is only 15%)? If this is a new primary, is the histology 9861/3 [AML, NOS] or 9895/3 [AML with myelodysplasia-related changes]? Was the second diagnosis of AML definitively diagnosed?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

This case is a single primary, essential thrombocythemia [9962/3] in 2002. The 2010 diagnosis is chronic myeloproliferative disorder [9960/3].

According to Rule M15, the Multiple Primaries Calculator is to be used to first determine the number of primaries. Per the calculator, essential thrombocythemia and chronic myeloproliferative disorder are the same primary. (Acute myeloid leukemia is not used as the second histology because it is preceded by a non-reportable ambiguous term, "suggests." "Suggests" is not on the list of reportable ambiguous terms in the Hematopoietic and Lymphoid Neoplasm Coding Manual.

In 2010, this patient was in a late stage of ET. When any of the specific MPN neoplasms such as ET are in the late stage of disease, the characteristics of the specific disease (ET) will no longer be detectable. Accordingly, for this patient the diagnostic testing was positive for MPN, unclassifiable. In this case, do not change the diagnosis from the more specific disease (ET) to the NOS (MPN, unclassifiable).

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100011

Reportability: Should a benign gangliocytic paraganglioma [8683/0] be a reportable (malignant) tumor based on the presence of lymph node metastases? See Discussion.

"Resection, periampullary duodenum: Gangliocytic paraganglioma, with metastasis to one large periduodunal lymph node. Six other small lymph nodes negative. COMMENT: The primary tumor in the duodenum is made up mainly endocrine cell component. This component appears to have metastasized to a periduodenal lymph node."

This neoplasm is reportable because it is malignant as proven by the lymph node metastases. Code the behavior as malignant (/3) when there are lymph node metastases.

 2010
20100027 Reportability: Is AIN III reportable if it arises in the perianal skin? See Discussion. Physical exam states patient has a suspicious area of anal skin. Operative findings show a raised, suspicious lesion in the right perianal region. Our interpretation of the primary site would be skin and therefore not reportable. However, the final diagnosis on the pathology report indicates "AIN III/squamous cell carcinoma with focal areas suspicious for microinvasion. "SINQ #20041056 states that AIN III is reportable. AIN III of the anus or anal canal (C210-C211) is reportable. AIN III (8077) arising in perianal skin (C445) is not reportable. 2010
20100017 MP/H Rules/Multiple primaries--Prostate: Does adenosquamous carcinoma found in the prostate represent a second primary in a patient previously diagnosed with adenocarcinoma of the prostate? See Discussion.

Patient was diagnosed many years ago with adenocarcinoma of the prostate and treated with hormonal and radiation therapy. The patient recently underwent a TURP and is found to have adenosquamous carcinoma of the prostate. The pathology report comment states squamous carcinoma of the prostate is rare and is often associated with a history of hormonal or radiation therapy. There is no information indicating a history of a squamous carcinoma in the urinary system that could have involved the prostatic urethra.

Would the MP/H rules make this a second primary with the histology of 8560/3 [adenosquamous carcinoma]?

 For cases diagnosed 2007 or later, based on the limited information available for this unusual case, abstract a second prostate primary and code the histology as adenosquamous carcinoma. Rule M3 does not apply in this case. Apply rule M10. 2010
20100039

Casefinding--Heme & Lymphoid Neoplasms: Is the 2010 casefinding code of 289.6 (Familial Polycythemia) addressed anywhere in the Hematopoietic Database? See Discussion.

When you enter "familial polycythemia" into the Heme DM, polycythemia vera (PV) appears; however, the term "familial polycythemia" is not listed as one of the synonyms for PV.

Familial polycythemia by itself is not reportable. This is a benign condition which occurs within families. Familial polycythemia can progress to polycythemia vera (9950/3), which would then be reportable. The code, 289.6, which is the ICD-9-CM code for Familial polycythemia is not included on the reportable list for casefinding. There is only one ICD-9-CM code for Polycythemia vera, 238.4. "Familial polycythemia" is listed in Appendix F: Non-Reportable List for Hematopoietic Diseases.

2010
20100103 Reportability--Corpus uteri: Is gestational trophoblastic neoplasia reportable if there is no mention of metastasis but the patient has been treated with chemotherapy? See Discussion.

Per SINQ 20021106, for tumors diagnosed prior to 2007, a clinical diagnosis of metastatic gestational trophoblastic disease was to be coded to histology 9100/3 [Choriocarcinoma]. "Gestational trophoblastic neoplasia includes the diagnosis of choriocarcinoma."

Do not report gestational trophoblastic neoplasia unless stated to be malignant. 2010
20100073 Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a patient is diagnosed on 4/7/10 by a bone marrow biopsy with myelodysplastic syndrome, refractory anemia (RAEB2) and on a 7/27/10 bone marrow biopsy with progression to acute myelogenous leukemia with 40% blasts (AML)?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Accession two primaries per Rule M10, the first is a chronic neoplasm RAEB2 [9983/3] and the second is an acute neoplasm AML, NOS [9861/3]. Rule M10 states abstract as multiple primaries when a neoplasm is originally diagnosed in a chronic phase (MDS RAEB2) and an acute disease (AML) is diagnosed more than 21 days later. This is the rule that fits your case.

There are several important pieces of information. There were two bone marrows biopsies; one confirmed the chronic disease and a second confirmed the acute disease. The dates of the bone marrows are more than 3 months apart. Because you have a chronic and an acute disease, Rules M8-M13 in the coding manual apply.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010